1b. var. pubescens
(Willd.) Correll (large yellow lady’s slipper)
C.
pubescens Willd. (Luer, 1975;
Sheviak, 1974)
Leaves
3 or 4 (5) per flowering stem. Sepals and lateral petals yellowish green with
reddish purple streaks. Lateral petals 5–9 cm long. Lip 3–6 cm long.
Scattered
nearly throughout Missouri, but somewhat more common in the eastern half of the
state (U.S., Canada). North‑ and east‑facing slopes of ravines and
stream valleys in rich, mesic, upland forests, rarely on seepy ledges or in
moist soil of shallow depressions at the edge of glades.